Home / 74,764.45-103,174.65-40,772.86

Finding the Fourth Proportional to 74,764.45, 103,174.65 and 40,772.86

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Solution

The fourth proportional to 74,764.45, 103,174.65 and 40,772.86 is: 56,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,764.45 : 103,174.65 = 40,772.86 : x
  2. Step 2: Convert to fraction form
    74,764.45/103,174.65 = 40,772.86/x
  3. Step 3: Cross multiply
    74,764.45x = 103,174.65 × 40,772.86
  4. Step 4: Simplify right side
    74,764.45x = 4,206,725,560.00
  5. Step 5: Solve for x
    x = 4,206,725,560.00/74,764.45
  6. Step 6: Final answer
    x = 56,266.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.